[BMWCSRegistry] Powdercoating calipers max heat operation

[Tony Sims]

Enrique,
One thing to consider is the calipers are full of fluid when in use, so 
there is something to help spread the heat and avoid hot spots that 
could damage the seals.  Still, according to what I can find, Viton 
rubber (which I'm pretty sure is the composition of those seals) is safe 
for use up to a continuous 400f.

Tony

spanlab at entelnet.bo wrote:
> Hi list,  I am getting ready to powdercoat my four brake calipers. This particular time I have not separated the
> two halfs although I have a complete set of inside seals. I have not parted the calipers because they seem to be in very good condition and also cause I feel a tad lazy.  I will be cooking the calipers at around 150C 350F....my question is...
> anybody know what max operating temperature of the calipers is under heavy braking? I have racing table that goes
> up to 500C... I ask this cause there is small rubber seal inside the calipers that I hope will withstand the cooking process.
>
> thanks, Enrique
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